Home / 8,774.74-13,157.10-5,218.36

Finding the Fourth Proportional to 8,774.74, 13,157.10 and 5,218.36

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Solution

The fourth proportional to 8,774.74, 13,157.10 and 5,218.36 is: 7,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.74 : 13,157.10 = 5,218.36 : x
  2. Step 2: Convert to fraction form
    8,774.74/13,157.10 = 5,218.36/x
  3. Step 3: Cross multiply
    8,774.74x = 13,157.10 × 5,218.36
  4. Step 4: Simplify right side
    8,774.74x = 68,658,484.36
  5. Step 5: Solve for x
    x = 68,658,484.36/8,774.74
  6. Step 6: Final answer
    x = 7,824.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.